A nurse is collecting data from a newborn who has respiratory distress syndrome and is experiencing respiratory acidosis. Which of the following risk factors predisposes the newborn to respiratory difficulties?
Small for gestational age.
Maternal history of asthma.
Ventricular septal defect.
Cesarean birth.
The Correct Answer is A
Choice A reason:
Small for gestational age (SGA) newborns are at risk for respiratory distress syndrome (RDS) and respiratory acidosis because they have immature lungs that produce less surfactant, which is needed to keep the alveoli open and prevent atelectasis. SGA newborns also have less glycogen stores, which can lead to hypoglycemia and impaired oxygen delivery to the tissues.
Choice B reason:
Maternal history of asthma is not a risk factor for RDS or respiratory acidosis in the newborn. Asthma is a chronic inflammatory disorder of the airways that affects the mother, not the fetus. Maternal asthma can cause complications such as preterm labor, preeclampsia, or intrauterine growth restriction, but it does not directly affect the fetal lung development or function.
Choice C reason:
Ventricular septal defect (VSD) is a congenital heart defect that causes a hole in the wall between the ventricles of the heart. This can result in increased pulmonary blood flow and pressure, which can lead to pulmonary edema and heart failure in the newborn. However, VSD does not cause RDS or respiratory acidosis, which are related to lung maturity and surfactant production.
Choice D reason:
Cesarean birth is not a risk factor for RDS or respiratory acidosis in the newborn. Cesarean birth can increase the risk of transient tachypnea of the newborn (TTN), which is caused by delayed absorption of fetal lung fluid. TTN usually resolves within 24 to 48 hours and does not cause a significant acid-base imbalance in the newborn.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
Choice A reason:
A soft fundus indicates uterine atony, which is a lack of muscle tone that can lead to postpartum hemorrhage. A soft fundus is an abnormal finding and should be reported to the provider. The fundus should be firm and contracted to prevent bleeding.
Choice B reason:
A fundus that is 2 fingerbreadths above the umbilicus is too high for a client who is 12 hours postpartum. The fundus should descend about 1 centimeter per hour after delivery and should be at the level of the umbilicus at 12 hours postpartum. A high fundus could indicate retained placental fragments or a full bladder, both of which can interfere with uterine contraction and cause bleeding.
Choice C reason:
A fundus that is deviated to the right of the umbilicus is also an abnormal finding for a client who is 12 hours postpartum. A deviated fundus could indicate a full bladder, which can displace the uterus and prevent it from contracting properly. The fundus should be at the midline of the abdomen.
Choice D reason:
A fundus that is firm and at the level of the umbilicus is a normal finding for a client who is 12 hours postpartum. This indicates that the uterus is involuting (returning to its pre-pregnancy size and shape) and that there is no excessive bleeding. The nurse should expect this finding and document it accordingly.
Correct Answer is C
Explanation
Choice A reason:
Holding the newborn vertically, allowing one foot to touch the crib surface, will elicit the stepping reflex, not the Moro reflex. The stepping reflex is when the newborn makes stepping movements when held upright with one foot touching a flat surface.
Choice B reason:
Turning the newborn's head quickly to one side will elicit the tonic neck reflex, not the Moro reflex. The tonic neck reflex is when the newborn assumes a "fencing”. position, with the arm and leg extended on the side to which the head is turned and the opposite arm and leg flexed.
Choice C reason:
Performing a sharp hand clap near the infant will elicit the Moro reflex, also known as the startle reflex. The Moro reflex is when the newborn responds to a sudden loss of support or a loud noise by extending and abducting the arms, spreading the fingers, and then bringing the arms together and crying.
Choice D reason:
Placing a finger at the base of the newborn's toes will elicit the Babinski reflex, not the Moro reflex. The Babinski reflex is when the newborn fans out the toes and dorsiflexes the big toe when the sole of the foot is stroked.
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